Vehicle wheel brake



Aug. 21, 1928. 1,681,630

. J. THOMAS VEHICLE WHEEL BRAKE I Original Filed Npv.4, 1924 Haj)NVENTQR BY GEORGE J.THo'mAs' ATTORNEY racemes m or, less,

U IT-en STAT-E3 JOSEPH fififims, F SQUTH 3mm, INDIAN-1, AEiSEGNOR 10BENDIIE.

retest series VEHICLE WHEEL BRAKE.

Application filed Hovcmber 4%, 1924, Serial lifofilififii. -R'encwefihas 27, 1928.

structure at one end of the shoe comprising an adjustable and detachablepart cooperating both with the body of the shoe and with the applyingmechanism. A further object of the invention resides in the pro- .Trtfvision of a simple but nevertheless efiicient shoe structure which maybe provided with a recess extending into its end and apart crossingsaidvrecess, in combination with a cam engaging thrust member threadedthrough said part and extending into the recess. 1 J

in the attainment of the above objects,

the Web portion of the shoe is preferably recessed at its end the recessbeing covered 29 by ,a substantiaiiy radially extendin 1nturned band orrim part of the shoe through which an adjustable thrust part may bethreaded.

The above and other objects will be an 25 parent to one skilled in thisart after a study of the specification taken in connection with theannexed drawing Wherem:

Figure 1 is a fragmentary view of one of the shoes disclosing in detailthe essentials 30 of my invention;

Figure 2 is an end View of Figure 1; and

Figure 3 is a perspective View of the cam engaging structure In theembodiment selected for iilustra tion I provide a novel shoe 10, theinvention being particularly directed to a novel cam engaging endstructure of the same. 'ljhe shoe preferably comprises an outer frictionor rim part 12, upon. which may be mounted the conventional frictionlining and a reinforcing web part l t preferably extending at rightangles to the friction part 12.

At the cam engaging end of the shoe the web is preferably recessed,indicated in Figure 1 at 16, said recess adapted to accommodate a camengaging or thrust member 18. The thrust member 18 preferably has itscam engaging face 2 -0 hardened and may comprise an adjustable screwwhich may be threaded through. an inturned, substantially radiallyextending end 22 of the run part 12. A locknut'fi t may be threaded onthe screw within the recess 16 to hold the some in adjustment with theend 22', It Wili also be noted that web 14,, by virtue of the recessedportion 16, is provided with projection 26 against which the end 22ebnts.

his to be seen, therefore, that 1 have provided a simple and yetpracticaishoe structure embodying a novel cam engaging paitreadiiyadjustable and replaceable.

While I have shown how my invention may be applied in practice, I do notwish to be limited to the exact detaii disclosed and described, but onlyso far as may be embraced by the terms of the appended claims.

Having thus described my invention What I claiinis:

1. A brake shoe having at stiffening Web with a recess cut inwardly fromone end, in combination with an sdjnstable thrust member having a partextending into. said recess.

2. A brake shoe having a stiffening Web with a recess cut inwardly fromone end andwith a part extending across the recess, in combination withan adjustable thrust member threaded into said part and having a partextending into said recess.

3. A brake shoe having an outer friction part and a stiffening Webjointly forming a T-section shoe, and with the was cut away at one endto form. a recess and the end oi said friction part extending" inwardlyacross said recess, in combination with thrust part carried by theinwardly-extending part of the friction part and extending into saidrecess.

4 A brairc shoe having an outer friction part and a stiiiening Webjointiy forming" a T-section shoe, and with the end of said frictionpart extending inwardly across the end of the web, in combination "witha thrust part adjusts-lily carried by the inwardlyextending part of thefriction part.

5. A brake shoe having an outer friction part-and a stificning webjointly forming; at I T-section shoe, and with the Web cut away at oneend to form a recess and end of said friction art extending inwardlyacross said recess, in combination with a thrust part threaded throughthe inwardly-extendlng part of the friction part.

5. A bmke shoe formed with a recess extending into its end and withapart crossing 5 Saki recess, in combination with a thrust memberadjustzibly carried by said part and extending into the reeeai,

memao 7. A brake shoe formed with a, recess eztending into its end andwith e part crossing said. recess, in combination with a thrust: memberthreaded through said part and extending into the recess. 7

In testimony whereof, I afiix my signature.

GEORGE JOSEPH THOMAS.

